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The Scientist and Engineer's
Guide to Digital Signal Processing
by Steven W. Smith
California Technical Publishing
ISBN 0-9660176-3-3 (1997)
Chapter 23. Image Formation and Display
- Digital Image Structure
- Cameras and Eyes
- Television Video Signals
- Other Image Acquisition and Display
- Brightness and Contrast Adjustments
- Grayscale Transforms
- Warping
Images are a description of how a parameter varies over a surface. For example,
standard visual images result from light intensity variations across a two-dimensional
plane. However, light is not the only parameter used in scientific imaging. For example,
an image can be formed of the temperature of an integrated circuit, blood
velocity in a patient's artery, x-ray emission from a distant galaxy,
ground motion during an earthquake, etc. These exotic images are usually
converted into conventional pictures (i.e., light images), so that they can be evaluated by
the human eye. This first chapter on image processing describes how digital images are
formed and presented to human observers.
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